HP L260 Print Issues with Grey

[valleyexpo4950]

Hello,

I have been having some issues lately with a certain clients graphics. It seems to be printing a banding/streaking that I cannot resolve in the graphic. I have tried different print settings for heat/curing, etc. I have tried alignments, cleanings, replacement of ink cartridges and print heads. I have tried different types of print vinyl as well. Any suggestions would be helpful. Running on Wasatch 6.9. Attached is an image that is hopefully helpful

Thanks

 

[Bly]

Have you tried increasing the number of passes?

 

[AF]

If increased passes doesn't work, try reducing tension / vacuum / airflow.

 

[valleyexpo4950]

Tried all of those. If I go lower on vacuum/tension it actually looks worse. These printers are great until you get an upset client. Sometimes I wish I could just snap my fingers and have either the brand new hp printers or just switch to direct print flatbeds.

 

[chafro]

Try limiting the inks, you might be dropping too much.

 

[valleyexpo4950]

Try limiting the inks, you might be dropping too much.

What is the best way to do that?

 

[CES020]

Ink limits is an option for that media when you profile it. I know where it is in Onyx, but not where it is in Wasatch.

 

[AF]

The OP may be using a canned profile or the wrong profile, I would start from scratch and make a good profile. I have had no issues with custom profiles, but found that canned profiles can be a can of worms. This is the perfect time to invest in a spectro / ICC engine.

 

[eahicks]

Yes, all in the profile. I have found with the right profiles, the HP L260 prints grays better than any printer I have run. There are some PMS greys that tend to 'green' on me, but mostly I hit perfect grays every time.